System and method for determining input object information from proximity and force measurements
First Claim
1. A processing system for use with an input device having an array of sensor electrodes, the processing system configured to be communicatively coupled to the array of sensor electrodes and configured to:
- operate at least a subset of the array of sensor electrodes to determine a proximity image for input objects in a sensing region of the input device;
operate at least a subset of the array of sensor electrodes to determine a force image indicative of local deflection of an input surface of the input device;
determine a first group of proximity pixels from the proximity image corresponding to a first input object in the sensing region to obtain a determined group of proximity pixels;
determine a first group of force pixels from the force image corresponding to the determined first group of proximity pixels to obtain a determined group of force pixels;
determine the force for the first input object based on the determined group of force pixels; and
perform a user interface action based on the force determined for the first input object.
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Accused Products
Abstract
A processing system for an input device having a sensing region overlapping an input surface and an array of sensor electrodes configured to form a plurality of proximity pixels and a plurality of force pixels. The processing system is configured to: determine a proximity image indicative of positional information for input objects; determine a force image indicative of local deflection of the input surface in response to force applied by the input objects; determine a respective group of proximity pixels from the proximity image corresponding to each input object; determine a respective group of force pixels from the force image corresponding to each determined group of proximity pixels; determine the position of each input object based on the determined groups of proximity pixels; and determine the force associated with each input object based on the determined groups of force pixels.
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Citations
22 Claims
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1. A processing system for use with an input device having an array of sensor electrodes, the processing system configured to be communicatively coupled to the array of sensor electrodes and configured to:
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operate at least a subset of the array of sensor electrodes to determine a proximity image for input objects in a sensing region of the input device; operate at least a subset of the array of sensor electrodes to determine a force image indicative of local deflection of an input surface of the input device; determine a first group of proximity pixels from the proximity image corresponding to a first input object in the sensing region to obtain a determined group of proximity pixels; determine a first group of force pixels from the force image corresponding to the determined first group of proximity pixels to obtain a determined group of force pixels; determine the force for the first input object based on the determined group of force pixels; and perform a user interface action based on the force determined for the first input object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An electronic system having an input device, the input device comprising:
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a sensing region overlapping an input surface; a plurality of sensor electrodes configured to form a plurality of proximity pixels and a plurality of force pixels; and a processing system configured to be communicatively coupled to the plurality of sensor electrodes and configured to; determine a proximity image and a force image indicative of at least one input object in the sensing region; determine a first group of proximity pixels from the proximity image corresponding to a first input object of the at least one input object to obtain a determined first group of proximity pixels; and determine a first group of force pixels, corresponding to the first input object to obtain a determined first group of force pixels. - View Dependent Claims (19, 20, 21, 22)
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Specification